The average speed of a car that travels a distance of 240 km is three hours

A 1.75 kg stone falls from the top of a cliff and strikes the ground at a speed of 58.8 m/s. What is the height of the cliff?

A circular arc has a uniform linear charge density of 4 nC/m. 287 ◦ 2.5 m x y What is the magnitude of the electric field at the center of the circle along which the arc lies? The value of the Coulomb constant is 8.98755 * 109 N · m2 / C 2.

Sarah and Maria made a telephone using two cans and a string. It was a very long string. Maria went upstairs in her house and Sarah stayed downstairs. Maria spoke softly into the can. "I can hear you!' Sarah said back.

Two balls with charges + Q and + 4Q are separated by 3R. Where should you place another charged ball Q0 on the line between the two charges such that the net force on Q0 will be zero?

How do you think air resistance affects measured values of g? If you used a ping pong ball, for example, how would this affect the fall-time?

PV = nRT, is the a. equation of state of an ideal gas b. theorem of equipartition of energy c. second law of thermodynamics

Which conducting electricity has the most harmful effects?

Which is the farthest known planet from the sun? a. Jupiter b. Saturn c. Uranus d. Neptune

Laser light of wavelength 470 nm shines on a pair of slits at normal incidence, producing a pattern of maxima on a large screen 92.0 cm away from the slits. The second order maximum is observed to be 31.7 cm away from the central maximum. a.

What does the slope of a line of best fit represent